31029132 has 24 divisors (see below), whose sum is σ = 72520000. Its totient is φ = 10326096.

The previous prime is 31029121. The next prime is 31029133. The reversal of 31029132 is 23192013.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31029099 and 31029108.

It is not an unprimeable number, because it can be changed into a prime (31029133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7119 + ... + 10617.

Almost surely, 2^31029132 is an apocalyptic number.

It is an amenable number.

31029132 is an abundant number, since it is smaller than the sum of its proper divisors (41490868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31029132 is a wasteful number, since it uses less digits than its factorization.

31029132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4245 (or 4243 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 31029132 is about 5570.3798793260. The cubic root of 31029132 is about 314.2364373353.

The spelling of 31029132 in words is "thirty-one million, twenty-nine thousand, one hundred thirty-two".